# 클래스톡 vs DYB Window

The clearest difference is review sentiment: DYB Window at 49% against 클래스톡's 0%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

클래스톡 ships an update every 3 weeks, DYB Window fortnightly. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 클래스톡 | DYB Window |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (20 ratings)](https://appshunter.io/ios/app/dyb-window/id6473522970/reviews)** |
| Number of ratings | — | **20** |
| Positive reviews | 0.0% of reviews | **49.2% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | Free |
| Size | 40 MB | 57 MB |
| Requires iOS | 17.0 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [NETBREEZE](https://appshunter.io/developer/1749925467) | [Edu Brain Co. Ltd](https://appshunter.io/developer/1719087208) |

## What reviewers say

### 클래스톡

[App page](https://appshunter.io/ios/app/classtalk/id1547400547)

Stay informed about your child's school life from kindergarten to high school. Receive class notices, view academic schedules, and communicate directly with teachers through one-on-one or group chats.

**Highlights:** View class notices and school news, Access monthly academic calendars and events, 1:1 and group chat with teachers, Information for kindergarten to high school

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### DYB Window

[App page](https://appshunter.io/ios/app/dyb-window/id6473522970)

This app allows students to submit homework and tests, receive individual feedback, and track their learning progress. It builds a unique history of academic achievements for comprehensive performance management.

**Highlights:** Submit homework and tests, Receive individual feedback, Track learning progress, View class schedules, Check shuttle bus information, Manage retakes and supplementary lessons

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 클래스톡 free?

클래스톡 is free to download, with no in-app purchases.

### Is DYB Window free?

DYB Window is free to download, with no in-app purchases.

### Do 클래스톡 or DYB Window have ads?

Neither 클래스톡 nor DYB Window shows ads.

### Which is updated more often, 클래스톡 or DYB Window?

클래스톡 ships an update every 3 weeks, and DYB Window fortnightly. Most recently, 클래스톡 was updated on October 12, 2026 and DYB Window on October 18, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*